La Sportiva Jackal II BOA Trail Running Shoes
The Jackal II BOA is a performance-oriented Mountain Running shoe designed to take on any distance but built with Ultra-Long distance adventures in mind. It shares the same sole package as the Jackal II which is equipped with Infinitoo cushion technology for less energy expenditure. The protective upper with a precise and secure fit ensures stability even on the most technical sections of trail while the double BOA Fit System makes heel/forefoot volume adjustments a breeze while on the move.
Recycled Sandwich Mesh Upper
The upper of the Jackal II has been constructed from a recycled sandwich mesh that encases each foot in breathable comfort. The mesh allows air to fully permeate the entire upper, providing a constant supply of fresh, cool air while simultaneously forcing out hot muggy air. No-sew Thermo-adhesive reinforcements add durability throughout alongside a recycled abrasion-resistant mesh for added breathability and long-lasting wear. This highly abrasion-resistant upper will prevent any damage from being caused, which will allow you to push yourself harder, safe in the knowledge that you won't cause damage to the shoes. The mesh also boasts reinforcements in abrasion-resistant microfiber technology to prevent roots, rocks, and stones from getting into the shoes. Additionally, the upper features a protective TPU toe cap that protects the front of the foot against trail hazards such as rocks and roots. A Spiyralfit tongue and collar construction with multilayer Ariaprene protects against heel impacts and debris entry while providing high breathability. Lastly, a balanced fit and unencumbered flexibility is offered by the Double BOA Fit System in combination with dynamic straps for maximum heel and forefoot adjustability.
EVA Midsole
The midsole on the Jackal II is designed to provide the perfect balance of fluidity, stability, and flexibility. Towards the bottom of the midsole, the EVA is extremely firm and will absorb shocks instantly. This will prevent them from reaching the sole of the foot, and it will also improve the stability of the shoe by spreading the energy evenly. The EVA towards the top of the midsole is softer, which will provide underfoot cushioning. Infinitoo Technology has also been used within the midsole to provide cushioning, stability, and shock absorption. The front element increases the cushioning, the rear insert contributes to the stabilization of the run. The midsole also incorporates a high-density EVA Rock-Shield for a more stable run with a rock-guard effect. Completing the midsole is an Ortholite ergonomic footbed which provides ample underfoot cushioning and increased moisture management so you can go further for longer in complete comfort.
FriXion XF 2.0 Outsole
Stciky grip and traction on all types of terrain is provided by the FriXion XF 2.0 outsole with all-terrain tread. This will guarantee that you have a supreme hold on uneven ground, as the outsole is able to create a strong link between the shoe and the ground. The rubber is also extremely durable, which will improve the longevity and functionality of the outsole. The dual mix compound delivers a perfect combination of grip, long-lasting wear, and shock absorption. An aggressive lug design will dig into wet ground, which will anchor the feet in place securely, which will give you more confidence when the ground becomes more uncertain. Completing the outsole are FLEX inserts, allowing for full freedom of movement.
